Yarn storage and outlet device

Abstract

A bobbin rotation damping return mechanism of the yarn storage and outlet device comprises a middle rotating shaft, a yarn storage tube, a clockwork spring and an inner ratchet wheel groove, the middle rotating shaft is rotatably installed on an installation base, and the yarn storage tube is installed on one side of the middle rotating shaft and can synchronously rotate along with the middle rotating shaft. One side, far away from the yarn storage tube, of the middle rotating shaft is clamped with the inner ratchet wheel groove through a clockwork spring; the yarn outlet tension return mechanism comprises a yarn guide fixing seat and two tension return assemblies arranged in the yarn guide fixing seat side by side, the yarn passes through the yarn guide fixing seat and the two tension return assemblies after being discharged from the yarn storage tube to form Z-shaped routing, and the yarn tube rotation damping return mechanism provides stable resistance and restoring force for the yarn storage tube to rotate under the traction of the yarn in the yarn outlet process. Excessive yarn discharge caused by rotation inertia of the yarn storage tube is avoided; the yarn outlet tension return mechanism provides certain yarn recovery force when yarn outlet is stopped, and the yarn tension is stabilized; wide weaving of special yarns such as carbon fibers, aramid fibers and glass fibers can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of textile machinery, in particular to a yarn storage and outlet device. Background Art

[0002] The traditional shuttle loom needs to use the shuttle with yarn storage to perform reciprocating weft insertion during the weft closed loop weaving process. During the weft insertion process, the yarn stored in the shuttle body is pulled out and enters the shuttle mouth due to external traction, but this process requires the weft insertion device to provide stable yarn outlet resistance or reverse pulling force of the yarn outlet to maintain a stable tension of the weft yarn during the weaving process. Existing weft insertion devices such as the technology of patent CN209098910U are only suitable for stable weft insertion of fabrics within 10cm, and cannot meet the weft tension control of wide fabric weaving, and cannot meet the large weft storage requirements of wide fabrics. Although the traditional flying shuttle weaving can be used for wide weaving, its weft tension is unstable and is often in a relaxed state, and its yarn outlet path is not suitable for weaving special yarns such as carbon fiber, aramid fiber, and glass fiber. Utility Model Content

[0003] The utility model aims to provide a yarn storage and outlet device, which can meet the wide-width weaving of special yarns such as carbon fiber, aramid fiber, glass fiber, etc., and can provide stable yarn outlet resistance and restoring force to maintain stable weft tension.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions:

[0005] A yarn storage and outlet device comprises a mounting seat, a yarn tube rotation damping recovery mechanism mounted on the mounting seat, and a yarn outlet tension recovery mechanism mounted on the front end of the mounting seat, the yarn tube rotation damping recovery mechanism comprises an intermediate rotating shaft, a yarn storage tube, a spring spring, and an inner ratchet groove mounted on the mounting seat, the intermediate rotating shaft is rotatably mounted on the mounting seat, the yarn storage tube is mounted on one side of the intermediate rotating shaft and can rotate synchronously with the intermediate rotating shaft, and the side of the intermediate rotating shaft away from the yarn storage tube is clamped with the inner ratchet groove through the spring spring; the yarn outlet tension recovery mechanism comprises a yarn guide fixing seat and two sets of tension reset assemblies mounted side by side in the yarn guide fixing seat, and after the yarn is discharged from the yarn storage tube, it passes through the yarn guide fixing seat and the two sets of tension reset assemblies to form a Z-shaped route.

[0006] Preferably, the mounting seat is an integrated structure consisting of a base plate and a flange on the front side of the base plate, the inner ratchet groove is installed inside the left side of the flange, and the front end of the flange is clamped or fixedly connected to the yarn guide fixing seat by bolts.

[0007] Preferably, the yarn storage tube is an integrated structure consisting of a conduit and retaining rings fixed at both ends of the conduit, a swivel is fixed to the left portion of the intermediate rotating shaft, and the swivel of the intermediate rotating shaft is clamped and fixed to the retaining ring at the left end of the yarn storage tube, the right portion of the intermediate rotating shaft passes through the yarn storage tube, and the intermediate rotating shaft and the retaining ring at the right end of the yarn storage tube are locked and fixed by a first nut.

[0008] Preferably, the rotating ring of the intermediate rotating shaft is fixed to the retaining ring at the left end of the yarn storage tube by a pin groove structure, a synchronous rotation slot or a synchronous rotation block is arranged on the rotating ring, and the yarn storage tube is provided with a synchronous rotation block or a synchronous rotation slot that is engaged with the synchronous rotation slot or the synchronous rotation block, the synchronous rotation slot is engaged with the synchronous rotation block, and at least two groups of synchronous rotation slots or synchronous rotation blocks are arranged.

[0009] Preferably, a spring installation groove is provided on the side of the intermediate rotating shaft away from the yarn storage tube, the middle elbow of the spring is inserted into the spring installation groove, the outer elbow of the spring abuts against the side of one of the ratchet teeth of the inner ratchet groove, the yarn is forced out, and the yarn storage tube drives the intermediate rotating shaft to rotate. The rotation of the intermediate rotating shaft causes the spring to deform and tighten. When the deformation reaches a certain extent, the outer elbow of the spring can be separated from the ratchet tooth of the inner ratchet groove and rotate to the next ratchet tooth, and can slide to the next tooth after a pause.

[0010] Preferably, the intermediate rotating shaft is mounted on the mounting seat through bearings, and there are two groups of bearings, one group of bearings is mounted inside the right side of the flange of the mounting seat, and the other group of bearings is mounted in the bearing fixing seat, and a second locking nut is installed on the intermediate rotating shaft, and the second locking nut locks the bearing fixing seat to the left side of the flange of the mounting seat.

[0011] Preferably, the yarn guide fixing seat is a U-shaped seat body, and the yarn guide pins are respectively installed in the middle of the front and rear side walls of the U-shaped seat body, and the tension reset assembly includes a guide rod locked on the yarn guide fixing seat, a slider slidably mounted on the guide rod, and an elastic body sleeved on the guide rod and abutting between the inner side of the U-shaped seat body and the slider, and the axial direction of the guide rod is parallel to the axial direction of the yarn storage tube.

[0012] Preferably, the two groups of tension reset assemblies are arranged front and back side by side in the yarn guide fixing seat, and the sliders on the two groups of tension reset assemblies tend to move relative to each other; and each group of tension reset assemblies is provided with two groups of guide rods in the longitudinal direction, and the sliders are provided with two groups of guide holes in the longitudinal direction, and each group of guide rods passes through the corresponding guide holes respectively.

[0013] Preferably, a yarn guide seat is installed on the slider and between the two groups of guide holes, and a yarn guide column is installed on the yarn guide seat. A thread passing channel is formed between the yarn guide column and the yarn guide seat. The yarn passes through the yarn guide pin in the middle of the rear side wall of the U-shaped seat body, the two groups of thread passing channels and the yarn guide pin in the middle of the yarn guide pin on the front side wall of the U-shaped seat body in sequence, forming a Z-shaped route.

[0014] Preferably, the elastomer is a compression spring or a spring. When the yarn tension is large, the elastomer can hinder the two groups of sliders from moving toward each other. When the yarn tension is small, the restoring force of the elastomer can squeeze the two groups of sliders to both sides at the same time, recovering the yarn and restoring a certain tension of the yarn, thereby stabilizing the yarn tension.

[0015] Beneficial effects of the utility model:

[0016] The yarn storage and outlet device of the utility model can meet the wide-width weaving of special yarns such as carbon fiber, aramid fiber, glass fiber, etc., and can provide stable yarn outlet resistance and restoring force to maintain stable weft yarn tension; and the yarn outlet path has no torsion and interference, which is particularly suitable for weaving wide-width yarns; due to its stable yarn tension control, it can also be installed on the spindle of a knitting machine for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a top view of the utility model;

[0019] Figure 3 A perspective view of the top view of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the intermediate rotating shaft of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the yarn storage tube of the utility model;

[0022] Figure 6 It is a structural schematic diagram of the slider of the utility model;

[0023] Figure 7 It is a schematic diagram of the assembly of the intermediate rotating shaft, the spring spring and the inner ratchet groove of the utility model;

[0024] Figure 8 It is a schematic diagram of the tension state formed when the tensioning force of the utility model is large;

[0025] Fig. 9 It is a schematic diagram of the tension state formed when the tension of the utility model is small; DETAILED DESCRIPTION

[0026] The following description is only a preferred embodiment of the present invention and does not limit the scope of the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0027] In addition, the terms "vertical", "horizontal", "top", "bottom", "front", "back", "up", "down", "inside", "outside" and the like mentioned in the embodiments of the present invention indicate directions or positional relationships based on the attached Figure 1 The orientation or position relationship shown, or the orientation or position relationship in which the product is usually placed when in use, is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the utility model. The utility model will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like in the description should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Example

[0030] As attached Figures 1 to 9 As shown, a yarn storage and outlet device comprises a mounting seat 1, a bobbin rotation damping recovery mechanism I mounted on the mounting seat 1, and a yarn outlet tension recovery mechanism II mounted on the front end of the mounting seat. The bobbin rotation damping recovery mechanism provides stable resistance and restoring force for the storage bobbin to rotate under the traction of the yarn during the outlet process, thereby avoiding excessive yarn outlet caused by the rotation inertia of the storage bobbin. The yarn outlet tension recovery mechanism can provide a certain yarn recovery force when the yarn outlet stops, thereby stabilizing the yarn tension.

[0031] The yarn tube rotation damping recovery mechanism includes an intermediate rotating shaft 2, a yarn storage tube 3, a clockwork spring 4 and an inner ratchet groove 5 installed on a mounting seat 1. The intermediate rotating shaft is rotatably mounted on the mounting seat, the yarn storage tube is installed on one side of the intermediate rotating shaft and can rotate synchronously with the intermediate rotating shaft, and the side of the intermediate rotating shaft away from the yarn storage tube is clamped with the inner ratchet groove through a clockwork spring.

[0032] The mounting seat is an integrated structure consisting of a base plate 101 and a flange 102 on the front side of the base plate. The inner ratchet groove 5 is installed inside the left side of the flange 102. The front end of the flange is clamped or fixedly connected to the yarn guide fixing seat of the yarn tension recovery mechanism by bolts.

[0033] The yarn storage tube 3 is an integrated structure consisting of a guide tube 301 and retaining rings 302 fixed at both ends of the guide tube. A swivel 201 is fixed to the left portion of the intermediate rotating shaft 2, and the swivel 201 of the intermediate rotating shaft is clamped and fixed with the retaining ring 302 at the left end of the yarn storage tube. The right portion of the intermediate rotating shaft passes through the yarn storage tube, and the intermediate rotating shaft and the retaining ring at the right end of the yarn storage tube are fixed by a first nut locking 6.

[0034] The rotating ring 201 of the intermediate rotating shaft 2 is fixedly connected with the retaining ring 302 at the left end of the yarn storage tube 3 by a pin-slot structure, and a synchronous rotation slot 202 or a synchronous rotation block is provided on the rotating ring 201, and a synchronous rotation block 303 or a synchronous rotation slot that is engaged with the synchronous rotation slot or the synchronous rotation block is provided on the yarn storage tube 3, and the synchronous rotation slot is engaged with the synchronous rotation block, and at least two groups of synchronous rotation slots or synchronous rotation blocks are provided. In this embodiment, two groups of synchronous rotation slots 202 are provided on the rotating ring, and two groups of synchronous rotation blocks 303 that are engaged with the synchronous rotation slots are provided on the yarn storage tube, and the two groups of synchronous rotation blocks 303 can be inserted into the synchronous rotation slots 202 respectively and correspondingly. During the yarn output process, the two groups of synchronous rotation blocks 303 are engaged in the corresponding synchronous rotation slots 202, so as to ensure that the yarn storage tube always rotates with the intermediate rotating shaft.

[0035] A spring installation groove 203 is provided on the side of the intermediate shaft 2 away from the yarn storage tube 3, and the intermediate elbow 401 of the spring 4 is inserted into the spring installation groove, and the outer elbow 402 of the spring abuts against the side of one of the ratchet teeth of the inner ratchet groove 5. The yarn 7 is forced to come out, and the yarn storage tube 4 drives the intermediate shaft 2 to rotate. The rotation of the intermediate shaft 2 causes the spring 4 to deform and tighten. When the deformation reaches a certain degree, the outer elbow of the spring can be separated from the ratchet teeth of the inner ratchet groove and rotate to the next ratchet tooth. After a pause, it can slide to the next tooth, thereby providing rotation resistance for the yarn storage tube 4. When the yarn comes out, the spring 4 will restore a certain amount of deformation, so it will rewind a certain amount of yarn 7 to ensure the stability of the yarn tension.

[0036] The intermediate rotating shaft is mounted on the mounting seat through bearings 8, and there are two groups of bearings, one group of bearings is mounted inside the right side of the flange of the mounting seat, and the other group of bearings is mounted in the bearing fixing seat 9, and a second locking nut 10 is installed on the intermediate rotating shaft, and the second locking nut locks the bearing fixing seat 9 on the left side of the flange of the mounting seat.

[0037] The yarn tension recovery mechanism comprises a yarn guide fixing seat 11 and two sets of tension reset components arranged side by side in the yarn guide fixing seat. After the yarn is discharged from the yarn storage tube, it passes through the yarn guide fixing seat and the two sets of tension reset components to form a Z-shaped routing.

[0038] The yarn guide fixing seat is a U-shaped seat body, and the middle parts of the front and rear side walls of the U-shaped seat body are respectively equipped with yarn guide pins 12. The tension reset assembly includes a guide rod 13 locked on the yarn guide fixing seat, a slider 14 slidably mounted on the guide rod, and an elastic body 18 sleeved on the guide rod and abutting between the inner side of the U-shaped seat body and the slider. The axial direction of the guide rod is parallel to the axial direction of the yarn storage tube. The elastic body 18 provides a spring force for the slider, which hinders the slider from moving toward the middle when the yarn tension is large, and squeezes the slider to both sides when the yarn tension is small, recovers the yarn and restores a certain tension of the yarn at the same time, thereby stabilizing the yarn tension.

[0039] The two groups of tension reset components are arranged front and back side by side in the yarn guide fixing seat, and the sliders on the two groups of tension reset components tend to move relative to each other; and each group of tension reset components is provided with two groups of guide rods 13 in the longitudinal direction, and the slider 14 is provided with two groups of guide holes 1401 in the longitudinal direction, and each group of guide rods passes through the corresponding guide holes respectively to ensure the stable movement of the slider.

[0040] A yarn guide seat 15 is installed on the slider and between the two groups of guide holes. A yarn guide column 16 is installed on the yarn guide seat. A thread passing channel 17 is formed between the yarn guide column and the yarn guide seat. The yarn passes through the yarn guide pin 12 in the middle of the rear side wall of the U-shaped seat body, the two groups of thread passing channels 17 and the yarn guide pin in the middle of the front side wall of the U-shaped seat body in sequence, forming a Z-shaped routing.

[0041] The elastomer is a compression spring or a spring. The elastomer 18 of this embodiment is a compression spring. When the yarn tension is large, the elastomer can hinder the two groups of sliders from moving toward each other. When the yarn tension is small, the restoring force of the elastomer can squeeze the two groups of sliders to both sides at the same time, recovering the yarn and restoring a certain tension of the yarn at the same time, thereby stabilizing the yarn tension.

[0042] like Figure 8 As shown in , when the external yarn pulling force is large, the thread tension is large, and the yarn guide sliders on both sides overcome the resistance and move toward the middle, forming a tensioned state; Fig. 9 It is shown that when the external yarn pulling force decreases or stops pulling, the thread tension decreases, and the yarn guide sliders on both sides move to both sides due to the restoring force provided by the compression spring, tightening the yarn and forming a tensioned state. In this way, a certain tension of the yarn is restored while the yarn is recovered, thereby stabilizing the yarn tension.

[0043] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A yarn storage and outlet device, comprising a mounting seat and a yarn tube rotation damping recovery mechanism mounted on the mounting seat and a yarn outlet tension recovery mechanism mounted on the front end of the mounting seat, the yarn tube rotation damping recovery mechanism comprising an intermediate rotating shaft, a yarn storage tube, a spring spring and an inner ratchet groove mounted on the mounting seat, the intermediate rotating shaft being rotatably mounted on the mounting seat, the yarn storage tube being mounted on one side of the intermediate rotating shaft and being able to rotate synchronously with the intermediate rotating shaft, the side of the intermediate rotating shaft away from the yarn storage tube being clamped with the inner ratchet groove through the spring spring; the yarn outlet tension recovery mechanism comprising a yarn guide fixing seat and two sets of tension reset assemblies mounted side by side in the yarn guide fixing seat, the yarn forming a Z-shaped routing after passing through the yarn guide fixing seat and the two sets of tension reset assemblies after being discharged from the yarn storage tube.

2. A yarn storage and outlet device according to claim 1, characterized in that: The mounting seat is an integrated structure consisting of a base plate and a flange on the front side of the base plate. The inner ratchet groove is installed inside the left side of the flange. The front end of the flange is clamped or fixedly connected to the yarn guide fixing seat by bolts.

3. A yarn storage and outlet device according to claim 1, characterized in that: The yarn storage tube is an integrated structure consisting of a guide tube and retaining rings fixed at both ends of the guide tube, a swivel is fixed to the left portion of the intermediate rotating shaft, and the swivel of the intermediate rotating shaft is clamped and fixed to the retaining ring at the left end of the yarn storage tube, the right portion of the intermediate rotating shaft passes through the yarn storage tube, and the intermediate rotating shaft and the retaining ring at the right end of the yarn storage tube are locked and fixed by a first nut.

4. A yarn storage and outlet device according to claim 1, characterized in that: The rotating ring of the intermediate rotating shaft is fixed to the retaining ring at the left end of the yarn storage tube by a pin groove structure, a synchronous rotation slot or a synchronous rotation block is arranged on the rotating ring, and a synchronous rotation block or a synchronous rotation slot that is engaged with the synchronous rotation slot or the synchronous rotation block is arranged on the yarn storage tube, the synchronous rotation slot is engaged with the synchronous rotation block, and at least two groups of synchronous rotation slots or synchronous rotation blocks are arranged.

5. The yarn storage and outlet device according to claim 1, characterized in that: A spring installation groove is provided on the side of the intermediate rotating shaft away from the yarn storage tube, and the middle elbow of the spring is inserted into the spring installation groove, and the outer elbow of the spring abuts against the side of one of the ratchet teeth of the inner ratchet groove. The yarn is forced to come out, and the yarn storage tube drives the intermediate rotating shaft to rotate. The rotation of the intermediate rotating shaft causes the spring to deform and be tensioned. When the deformation reaches a certain extent, the outer elbow of the spring can be separated from the ratchet tooth of the inner ratchet groove and rotate to the next ratchet tooth, and can slide to the next tooth after a pause.

6. A yarn storage and outlet device according to claim 2, characterized in that: The intermediate rotating shaft is mounted on the mounting seat through bearings, and there are two groups of bearings, one group of bearings is mounted inside the right side of the flange of the mounting seat, and the other group of bearings is mounted in the bearing fixing seat, and a second locking nut is installed on the intermediate rotating shaft, and the second locking nut locks the bearing fixing seat to the left side of the flange of the mounting seat.

7. A yarn storage and outlet device according to claim 1, characterized in that: The yarn guide fixing seat is a U-shaped seat body, and the middle parts of the front and rear side walls of the U-shaped seat body are respectively equipped with yarn guide pins. The tension reset assembly includes a guide rod locked on the yarn guide fixing seat, a slider slidably mounted on the guide rod, and an elastic body sleeved on the guide rod and abutting between the inner side of the U-shaped seat body and the slider. The axial direction of the guide rod is parallel to the axial direction of the yarn storage tube.

8. A yarn storage and outlet device according to claim 7, characterized in that: The two groups of tension reset components are arranged front and back side by side in the yarn guide fixing seat, and the sliders on the two groups of tension reset components tend to move relative to each other; and each group of tension reset components is provided with two groups of guide rods in the longitudinal direction, and the sliders are provided with two groups of guide holes in the longitudinal direction, and each group of guide rods passes through the corresponding guide holes respectively.

9. A yarn storage and outlet device according to claim 8, characterized in that: A yarn guide seat is installed on the slider and between the two groups of guide holes. A yarn guide column is installed on the yarn guide seat. A thread passing channel is formed between the yarn guide column and the yarn guide seat. The yarn passes through the yarn guide pin in the middle of the rear side wall of the U-shaped seat body, the two groups of thread passing channels and the yarn guide pin in the middle of the yarn guide pin on the front side wall of the U-shaped seat body in sequence, forming a Z-shaped routing.

10. A yarn storage and outlet device according to claim 7, characterized in that: The elastic body is a compression spring or a spring. When the yarn tension is large, the elastic body can prevent the two groups of sliders from moving toward each other. When the yarn tension is small, the restoring force of the elastic body can squeeze the two groups of sliders to both sides at the same time, recovering the yarn and restoring a certain tension of the yarn, thereby stabilizing the yarn tension.

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